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S40910 Stainless Steel vs. S20161 Stainless Steel

Both S40910 stainless steel and S20161 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S40910 stainless steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
46
Fatigue Strength, MPa 130
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
690
Tensile Strength: Ultimate (UTS), MPa 430
980
Tensile Strength: Yield (Proof), MPa 190
390

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 710
870
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 28
39
Embodied Water, L/kg 94
130

Common Calculations

PREN (Pitting Resistance) 11
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
360
Resilience: Unit (Modulus of Resilience), kJ/m3 94
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 16
36
Strength to Weight: Bending, points 16
29
Thermal Diffusivity, mm2/s 6.9
4.0
Thermal Shock Resistance, points 16
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 10.5 to 11.7
15 to 18
Iron (Fe), % 85 to 89.5
65.6 to 73.9
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Nickel (Ni), % 0 to 0.5
4.0 to 6.0
Niobium (Nb), % 0 to 0.17
0
Nitrogen (N), % 0 to 0.030
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
3.0 to 4.0
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0 to 0.5
0